dridex | ab44ef41e492f3df1be566ddde081d666b3e9f55ee6f0f195fe0acd4d9701912

Analysis

max time kernel
38s
max time network
112s
platform
windows10_x64
resource
win10v20201028
submitted
09-11-2020 19:42

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General

Target

11046515.dll
Size

632KB
MD5

8b0192345666026191be01ec52a47f64
SHA1

b7770117dd745c464a40bd3d3eda0ca832ec34a5
SHA256

ab44ef41e492f3df1be566ddde081d666b3e9f55ee6f0f195fe0acd4d9701912
SHA512

f47fd1012fdbed1950d9933b2be31f9829188a0008b6710eafe8901df78c06333374522d222f3ae70ce114f5ef38c6961498f5ff9e405cc3b4987df64f3f0ec7

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

178.128.83.136:443

138.122.143.41:8443

85.25.106.204:691

159.203.136.67:3308

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral2/memory/1048-1-0x0000000073D50000-0x0000000073D7B000-memory.dmp	dridex_ldr

Blocklisted process makes network request 1 IoCs

Processes:

rundll32.exe

flow pid process

19 1048 rundll32.exe
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

rundll32.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe

flow	pid	process
19	1048	rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 3336 wrote to memory of 1048	3336	rundll32.exe	rundll32.exe
PID 3336 wrote to memory of 1048	3336	rundll32.exe	rundll32.exe
PID 3336 wrote to memory of 1048	3336	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\11046515.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3336

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\11046515.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1048

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1048-0-0x0000000000000000-mapping.dmp

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memory/1048-1-0x0000000073D50000-0x0000000073D7B000-memory.dmp

Filesize
172KB

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